This is especially frustrating because often the secondary sources are from journalists who got the story wrong, made up "facts", incorrectly reported something, or just didn't understand the topic. But, because there words on are on some website they're taken as the authority.
I get it's a hard problem. The primary source could have reasons to lie. I've just seen too many cases where I've seen the secondary source was wrong either being the primary source or being at the primary source.
But, it's only going to get worse as A.I can start making up its own secondary sources and then link to them in a few weeks/months to edit wikipedia.